Home / 8,222.50-12,331.84-3,290.82

Finding the Fourth Proportional to 8,222.50, 12,331.84 and 3,290.82

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Solution

The fourth proportional to 8,222.50, 12,331.84 and 3,290.82 is: 4,935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.50 : 12,331.84 = 3,290.82 : x
  2. Step 2: Convert to fraction form
    8,222.50/12,331.84 = 3,290.82/x
  3. Step 3: Cross multiply
    8,222.50x = 12,331.84 × 3,290.82
  4. Step 4: Simplify right side
    8,222.50x = 40,581,865.71
  5. Step 5: Solve for x
    x = 40,581,865.71/8,222.50
  6. Step 6: Final answer
    x = 4,935.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.